Currently the items required for the are fairly valuable with two exceptions. The first exception being Coraza protectora which is cheaper due to being interchangeable with Coselete de la Flecha de la Tormenta. And the second exception being Guardabrazos protectores most likely due to a lack of interest for bracers, it should be noted though that the bracers are very much visible on the set unlike other sets where they are sometimes covered by the gloves.

Also note the Hombreras protectoras part of which also is valuable due to belonging to another moderately popular transmog set.

Due to the shared name, armor type, loot type and item level I feel it's appropriate to group together all protector items even if some doesn't belong in the transmog set.